skilllint — vet an agent skill before you install it

Name: skilllint — vet an agent skill before you install it
Author: mrpkk

by mrpkkversion 0.1.0i★ –iRuns in the cloud

Registry namelat.rta/skilllint

Install

Overview

Description from the maker (original English)

Vet an agent skill before you install it: structure, triggers, secrets.

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

User voiceiNo reviews yetReviews open together with accounts in a later step
Our basic checksi2 of 3 passedChecked from public information; code not scanned yet
UsageiNot measured yet★ –

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

Connection: Runs in the cloud
Transport: Streamable HTTP
Category: Cybersecurity

Install

Pick the AI app you use, then copy the settings.

Before you install

Basic checks: 2 of 3 passed
Runs on the maker’s server: what you ask it goes through their server.
Can do 3 things (tools) lint_skill, compare_skills, lint_rules
The registry lists no key to fill in.

You need

Runs in the cloudNothing to install; it connects over the internet

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

Pick your app above. We remember it, so next time the button says “Install in …”.

Works in Claude on the web, desktop and mobile:

Open Settings → Connectors
Press Add custom connector
Paste the address below and press Add
If it asks you to sign in, sign in with the maker

https://rta.lat/skilllint/mcp

Run this in your terminal

claude mcp add --transport http skilllint https://rta.lat/skilllint/mcp

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "skilllint": {
      "url": "https://rta.lat/skilllint/mcp"
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "skilllint": {
      "type": "http",
      "url": "https://rta.lat/skilllint/mcp"
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

ChatGPT connects only to servers on the internet:

Open ChatGPT on the web → Settings → Connectors (Apps)
Press Create or Add (some plans need Developer mode under Advanced first)
Paste the address below, give it a name and save
If it asks you to sign in, sign in with the maker

https://rta.lat/skilllint/mcp

Menu names can differ slightly by plan and over time.

Your choice stays on this device in a cookie; no account needed.

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

Tool names and descriptions exactly as the server reported them on Nov 7, 2026. The maker wrote them, not us; we show them as plain text.

lint_skill
Проверить SKILL.md: структура, триггеры, секреты, инъекции, битые ссылки, автономия. Возвращает вердикт, балл и sha256.
compare_skills
Сравнить нескольких кандидатов из разных реестров и ранжировать по вердикту и доказательной базе.
lint_rules
Список правил линтера с идентификаторами и severity.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 7, 2026

! Caution
Maker matches the repo
The publisher (rta.lat) is not the repo owner (mrpkk); someone else may have listed it
… Not checked yet
Still maintained
We have not read this repo from GitHub yet
… Not checked yet
Has a licence
We have not read this repo from GitHub yet
✓ Pass
Endpoint responds
Responded in 1344 ms (HTTP 200)
– Not applicable
Sign-in with OAuth
No sign-in needed
✓ Pass
No hidden instructions in tool descriptions
Read 3 tool descriptions and found no hidden instructions to the AI

Compared with others in Cybersecurityi

More stars than 0% of the other 993 servers in this category
Published to the registry more recently than 69% of the other 993 servers in this category
Basic checks equal to or better than 32% of the other 993 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is skilllint — vet an agent skill before you install it safe?

It passed 2 of 3 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

The registry does not list a required key, though some servers ask you to sign in on first use.

Does it run on my computer or in the cloud?

It runs in the maker’s cloud. Connect over the internet with nothing to install, but what you send passes through the maker’s servers.

Is it still maintained?

The GitHub repo last changed –, and the latest version (0.1.0) reached the registry 17 days ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT in developer mode.

What can I use instead?

In the same category: ipdata MCP by usefulapi, MaxMind minFraud MCP by usefulapi, Lambda Labs MCP by usefulapi

Alternatives

Servers in the same category from other makers, sorted by stars.

Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

ipdata MCP by usefulapi

by m190

Look up location, network, company and threat data for IP addresses and ASNs in ipdata.

Runs in the cloudUpdated today

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MaxMind minFraud MCP by usefulapi

by m190

MCP server for MaxMind minFraud — score transactions for fraud risk from your AI assistant.

Runs in the cloudUpdated today

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Lambda Labs MCP by usefulapi

by m190

Read GPU instances, types, images, filesystems and firewall rules; launch and terminate instances.

Runs in the cloudUpdated today

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README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

skilllint

Private lint of agent skills (SKILL.md). Nothing leaves the machine.

Existing scanners (for example NVIDIA SkillSpector - 71 patterns, AST, YARA, CVE lookup) answer "is this artifact dangerous", and they ship the inspected content to their provider. We do something narrower and complementary:

privacy - the check runs locally; only a verdict, a score and a hash go out;
reproducibility - the verdict is bound to a sha256 of the file, so it can be signed and verified later;
comparison - rank several candidates from different registries instead of scanning one artifact at a time.

Rules

id	severity	check
R-001	critical	frontmatter missing
R-002	high	`name` missing or invalid
R-003	high	`description` missing or too long
R-004	medium	no trigger ("when to use") in description
R-005	medium	dead instructions (TODO / deprecated / placeholder)
R-006	critical	secret-shaped literals
R-007	critical	prompt-injection / exfiltration markers
R-008	medium	references to files that do not exist
R-009	low	file larger than 60 KB
R-010	high	world-writable scripts
R-011	medium	unbounded autonomy instructions

Verdict: PASS (>=80, no critical) | WARN | FAIL (any critical).

Use it

python3 mcp_server.py                            # stdio

python3 mcp_server.py --http 8191 # streamable http npx -y mcp-remote https://rta.lat/skilllint/mcp # hosted

Tools: lint_skill(path) | compare_skills(paths) | lint_rules()

Signed verdicts

lint_skill returns {verdict, score, sha256, findings[]}. That hash is what attest signs and drift enforces as an allowlist - see Verified Tool Registry.

Locales: en, hi. India (Bharata) is supported from day one; legal claims require official sources, otherwise report pending.

License: MIT

skilllint — vet an agent skill before you install it

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Compared with others in Cybersecurityi

Common questions

Alternatives

ipdata MCP by usefulapi

MaxMind minFraud MCP by usefulapi

Lambda Labs MCP by usefulapi

README from the maker

skilllint

Rules

Use it

Signed verdicts